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Post-traumatic Stress Disorder01:27

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Updated: Jan 27, 2026

Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
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Identification of Key Genes and Pathways in Post-traumatic Stress Disorder Using Microarray Analysis.

Yaoyao Bian1, Lili Yang2,3, Min Zhao2

  • 1School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China.

Frontiers in Psychology
|March 16, 2019
PubMed
Summary

Bioinformatics analysis identified key genes and the Wnt signaling pathway involved in post-traumatic stress disorder (PTSD). These findings offer insights into PTSD molecular mechanisms and require further experimental validation.

Keywords:
PTSDbioinformatics analysiskey geneskey pathwaysmicroarray analysis

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Area of Science:

  • Molecular Psychiatry
  • Genomics
  • Bioinformatics

Background:

  • Post-traumatic stress disorder (PTSD) presents with impaired fear extinction, anxiety, and depression.
  • The precise pathogenesis and molecular underpinnings of PTSD remain incompletely understood.

Purpose of the Study:

  • To identify key genes and pathways implicated in PTSD.
  • To elucidate the molecular mechanisms contributing to PTSD pathogenesis using bioinformatics.

Main Methods:

  • Downloaded and analyzed mRNA microarray data from the Gene Expression Omnibus (GEO) database.
  • Identified differentially expressed genes (DEGs) using GEO2R, followed by Gene Ontology (GO) and KEGG pathway enrichment analysis.
  • Constructed and analyzed protein-protein interaction (PPI) networks using Cytoscape and MCODE, with validation via qRT-PCR and text mining.

Main Results:

  • Identified 1004 differentially expressed genes (DEGs) associated with PTSD.
  • The Wnt signaling pathway emerged as a significantly enriched pathway.
  • Key genes, including CYP1A2, SYT1, and NLGN1, were identified and potentially linked to PTSD via the Wnt signaling pathway.

Conclusions:

  • Bioinformatics analysis successfully identified potential key genes and pathways contributing to PTSD.
  • The Wnt signaling pathway and specific genes like CYP1A2, SYT1, and NLGN1 are highlighted as crucial for PTSD mechanisms.
  • Further experimental studies are necessary to validate these bioinformatics-derived findings.